If the probability is .55 that a marriage will end in divorce within 20 years, what is the probability that out of 6 couples just married, in the next 20 years
(A) None will be divorced? (B) All will be divorced? (C) Exactly 2 will be divorced? (D) At least 2 will be divorced?
Given :
Therefore , the pmf of X is ,
; x=0,1,2,........,n
= 0 ; otherwise
(A)
(B)
(C)
(D)
If the probability is .55 that a marriage will end in divorce within 20 years, what...
If the probability is .55 that a marriage will end in divorce within 20 years, what is the probability thag out of 6 couples just married, in the next 20 years A)None will be divorced? B) All will be divorced? C) Exactly 5 will be divorced? D)At least 5 will be divorced?
If the probability is 0.45 that a marriage will end in divorce within 20 years, what is the probability that out of 4 couples just married, in the next 20 years (A) None will be divorced? (B) All will be divorced? (C) Exactly3 will be divorced? (D) At least 3 will be divorced?
Research has shown that 6 out of 10 marriages (i.e., 60 percent) in US end in divorce. For a random sample of 5 just-married couples, what is the probability that five couples get divorced? Research has shown that 6 out of 10 marriages (i.e., 60 percent) in US end in divorce. For a random sample of 5 just-married couples, what is the mean of the number of couples expected to get divorced? Research has shown that 6 out of 10...
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A psychologist specializing in marriage counseling claims that, among all married couples, the proportion p for whom her communication program can prevent divorce is at least 76%. In a random sample of 230 married couples who completed her program, 166 of them stayed together. Based on this sample, can we reject the psychologist's claim at the 0.05 level of significance? Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at least three decimal places...
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